The lion king

World record: Internet speed of 319 Tb/s over 3,001 km

If you think your broadband is fast enough, let us tell you about the world’s fastest internet to make you feel even worse.

In 2020, scientists at University College London had set a new world record for the world’s fastest internet at 178 terabits per second (Tbps). Today, scientists from Japan’s National Institute of Information and Communications Technology (NICT) broke that record by raising the world’s fastest internet speed record to 319 terabits per second.

For years, intensive research has been conducted worldwide to increase data rates in optical transmission systems. More recently, interest in fiber optic cables has increased due to their wider transmission bandwidths.

Usually fiber broadband cables use a single core. This core is surrounded by plenty of insulation to protect it and ensure unbreakable data transmission. The scientists used an experimental cable that used four cores with a standard outer diameter (0.125mm). Each core is surrounded by similar insulation.

The scientists then developed a transmission system that uses wavelength division multiplexing technology. The technology combines different amplification technologies to achieve a transmission demonstration with a data rate of 319 terabits per second, over a distance of 3,001 km.

This fastest Internet speed is achieved by using S-band transmission bandwidth with C and L bands. Combined transmission bandwidth >120 nm allowed 552 1487.8 wavelength division multiplexed channels nm to 1608.33 nm.

Standard sheath diameter, 4-core optical fiber, can be wired with existing high-speed Internet. It is hoped that these fibers can enable practical high-speed transmission of data in the short term.

The scientists said they expect the technology to be used in long-range industrial data transmission, such as Earth space exploration data exchanges, which may require super-instantaneous data exchanges.